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Calculating the charging time (Fig. 3)
The charging time depends on the charge status
of the battery. If the battery was discharged but is
chargeable (not exhaustively discharged, "Lo" dis-
played, or defective), the approximate charging
time up to approx. 80 % charged can be calcula-
ted using the following formula:
Battery capacity in Ah
Charging time/h =
Amp. (charging current)
The charging current should be 1/10 to 1/6 of the
battery capacity.
5.6 Finishing charging the battery
•
Pull the power plug out of the socket outlet.
•
First disconnect the black charging cable
from the bodywork.
•
Then release the red charging cable from the
positive pole on the battery.
•
Important! In case of positive earthing, first
disconnect the red charging cable from the
bodywork and then the black charging cable
from the battery.
•
Screw or push the battery stoppers back into
position (if there are any).
Important! If the mains plug is pulled out but the
charger cables are still connected to the battery,
the charger will draw off a small amount of elec-
tricity from the battery. We therefore recommend
that you always completely remove the charger
from the battery when not in use.
5.7 24V Repair function
This function can be used to restore the functional
performance of deeply discharged 24V starter
batteries. In most cases deeply charged starter
batteries have become damaged and can there-
fore only have their functional performance resto-
red for a short time.
To switch on this function, press the AMPERE
SELECT button for 5 seconds. The selected bat-
tery will be charged up to a level of 15.1 V and
then analyzed.
a) If the battery voltage drops to above 14.5 V
within the analysis time, it is a 24 V battery.
The battery has undergone exhaustive di-
scharge and will be charged up with low cur-
rent strength. The battery could be damaged
as a result of the exhaustive discharge and an
error message may be displayed during char-
ging. If this is the case, it cannot be charged.
GB
b) If the battery voltage drops to below 14 V
c) If the battery voltage drops to between 14 –
5.8 Jump start function
Important! Do not press any button while the
countdown or the starting process is continuing
(indicated by "StA"). Should a malfunction occur
because a button is pressed by mistake, pull out
the power plug.
The battery voltage which is read off the LED dis-
play must be a minimum of 11.5 V for a 12 V bat-
tery (the higher the battery voltage, the better) (or
a minimum of 23 V for a 24 V battery) for the jump
starting function to be able to work. However, it is
still possible that the jump starting function may
not work nonetheless (e.g. if the battery is
damaged or the starter is faulty). In any such
case, proceed as described below.
1. Charge the battery as previously described
2. Press the "ENGINE START" pushbutton (Fig.
The charger checks the existing battery voltage.
2.1 If the battery voltage is below 11.5 V (23 V), a
2.2 If the battery voltage is 11.5 V (23 V) or high-
- 17 -
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within the analysis time, the connected bat-
tery will be treated as a 12 V battery. The bat-
tery will be fully charged up as a 12 V battery
with low current strength.
14.5 V within the analysis time, this means
that the battery cannot be identifi ed as either
a 12V or a 24V battery. The battery will not be
charged up and "Err" will be displayed.
for at least 15 minutes with a high charging
current.
1/Item 6) for 5 seconds. This activates the
jump start function.
jump start is not possible and the LED display
will show "ERR". Disconnect the charger from
the power supply and the battery. Connect
the charger to the battery and power supply
again as described above. Charge the battery
again for at least 15 minutes with a high char-
ging current. Then repeat the jump start pro-
cess from point 2 if the LED display indicates
at least 11.5 V (23 V).
er, a jump start is possible. "StA" appears on
the LED display and the "I" LED lights up. You
now have 1 minute in which to attempt a start.
During this minute the equipment provides
the jump start current (25 A – 100 A), depen-
ding on the battery voltage) for 5 seconds.
After 5 seconds the equipment goes into
quiescent state (no charging current) in order
to cool down, and the LED display (Fig. 1/
Item 2) starts a countdown of 180 seconds. At
the end of the countdown the charger analy-
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